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Finding the Fourth Proportional to 104,900.28, 144,764.04 and 57,153.61

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Solution

The fourth proportional to 104,900.28, 144,764.04 and 57,153.61 is: 78,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,900.28 : 144,764.04 = 57,153.61 : x
  2. Step 2: Convert to fraction form
    104,900.28/144,764.04 = 57,153.61/x
  3. Step 3: Cross multiply
    104,900.28x = 144,764.04 × 57,153.61
  4. Step 4: Simplify right side
    104,900.28x = 8,273,787,484.18
  5. Step 5: Solve for x
    x = 8,273,787,484.18/104,900.28
  6. Step 6: Final answer
    x = 78,872.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.